From ce8d37e7a80ba4b15907cd5db241d30707e795cf Mon Sep 17 00:00:00 2001
From: Henry Wong <somethingweird@yahoo.com>
Date: Wed, 25 Nov 2020 12:48:27 -0500
Subject: Update ch-2.php

where I learned to rotate matrix - http://techieme.in/matrix-rotation/
---
 challenge-088/henry-wong/php/ch-2.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/challenge-088/henry-wong/php/ch-2.php b/challenge-088/henry-wong/php/ch-2.php
index d5154c58f0..2e639bec68 100644
--- a/challenge-088/henry-wong/php/ch-2.php
+++ b/challenge-088/henry-wong/php/ch-2.php
@@ -1,9 +1,13 @@
 <?php
+
+# see http://techieme.in/matrix-rotation/
+
 # 0. take row
 # 1. delete row
 # 2. rotate matrix 90 degrees
 # 3. repeat again till no matrix
 
+# Rotate matrix
 # 1. transpose matrix 
 # 2. reflect horizontal axis 
 
-- 
cgit